Optimum Realism R18 128x [For SEUS Shaders] is a release file of the Minecraft resource pack Optimum Realism POM & PBR 64x/128x/256x/512x, made for Minecraft 1.17.1, 1.19.3, 1.20.2, 1.18.1, 1.17, 1.19.4, 1.16.5, 1.18.2, 1.19.2, 1.20.1, 1.20, 1.19.1 and more. It was published on January 24, 2024 and is 238.6 MB in size. For the full description, screenshots and every other version, visit the Optimum Realism POM & PBR 64x/128x/256x/512x resource pack page.
How to install: Put the .zip into .minecraft/resourcepacks (do not extract it) and enable it under Options → Resource Packs.